27973840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:404

約数の個数: 80

約数和(自身を含む): 70120512

約数和(自身を除く): 42146672

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 67, 68, 80, 85, 134, 136, 170, 268, 272, 307, 335, 340, 536, 614, 670, 680, 1072, 1139, 1228, 1340, 1360, 1535, 2278, 2456, 2680, 3070, 4556, 4912, 5219, 5360, 5695, 6140, 9112, 10438, 11390, 12280, 18224, 20569, 20876, 22780, 24560, 26095, 41138, 41752, 45560, 52190, 82276, 83504, 91120, 102845, 104380, 164552, 205690, 208760, 329104, 349673, 411380, 417520, 699346, 822760, 1398692, 1645520, 1748365, 2797384, 3496730, 5594768, 6993460, 13986920, 27973840]

約数ペア:

[(1, 27973840), (2, 13986920), (4, 6993460), (5, 5594768), (8, 3496730), (10, 2797384), (16, 1748365), (17, 1645520), (20, 1398692), (34, 822760), (40, 699346), (67, 417520), (68, 411380), (80, 349673), (85, 329104), (134, 208760), (136, 205690), (170, 164552), (268, 104380), (272, 102845), (307, 91120), (335, 83504), (340, 82276), (536, 52190), (614, 45560), (670, 41752), (680, 41138), (1072, 26095), (1139, 24560), (1228, 22780), (1340, 20876), (1360, 20569), (1535, 18224), (2278, 12280), (2456, 11390), (2680, 10438), (3070, 9112), (4556, 6140), (4912, 5695), (5219, 5360)]